Liquid heater

Abstract

The utility model relates to the technical field of liquid heating, in particular to a liquid heater. The liquid heater comprises a shell, an inner container, a first heating assembly and a second heating assembly. The inner container is suitable for storing water, and the first heating assembly is attached to the inner container so as to heat the water in the inner container. The second heating assembly comprises a water outlet pipe, the water outlet pipe communicates with the inner container so as to heat water in the water outlet process, and the second heating assembly and the first heating assembly can work independently. The water in the inner container and the water in the water outlet process are heated through the first heating assembly and the second heating assembly correspondingly, the first heating assembly and the second heating assembly can work relatively independently, mutual limitation between the first heating assembly and the second heating assembly is avoided, the heating power is guaranteed, and the water in the inner container can be boiled through the first heating assembly. When instant heating is needed, the output water is heated through the second heating assembly, water in the whole inner container does not need to be heated, the heating speed is increased, and energy is saved.

Description

Technical Field

[0001] The present application relates to the technical field of liquid heating, and in particular to a liquid heater. Background Art

[0002] Instant liquid heaters, such as water dispensers, liquid heaters, etc., can quickly heat cold water to a specified temperature for users to use. In related technologies, instant liquid heaters use thick film heating elements for heating, which have the problems of high cost and low heating temperature. Usually, it is difficult to boil water, so only drinking water can be heated. In addition, in other instant liquid heaters, the heating structure is not reasonably designed, and the heating power is limited, resulting in too long heating time. Summary of the Utility Model

[0003] The utility model aims to solve at least one of the technical problems existing in the related technologies. For this purpose, the utility model provides a liquid heater, including:

[0004] A housing;

[0005] An inner tank, which is suitable for storing water;

[0006] A first heating assembly, which is attached to the inner tank to heat the water in the inner tank;

[0007] A second heating assembly, which includes a water outlet pipe, the water outlet pipe is communicated with the inner tank, and the second heating assembly and the first heating assembly can work relatively independently;

[0008] A water pump, an outlet is provided on the bottom wall of the inner tank, and the outlet is connected to the second heating assembly through the water pump.

[0009] According to the liquid heater provided by the embodiment of the utility model, the second heating assembly further includes:

[0010] A heat conduction sleeve, which is sleeved outside the water outlet pipe;

[0011] A heating element, which extends along the heat conduction sleeve and is attached to the heat conduction sleeve.

[0012] According to the liquid heater provided by the embodiment of the utility model, the outer peripheral wall of the heat conduction sleeve has a first connection surface, the outer peripheral wall of the heating element has a second connection surface, both the first connection surface and the second connection surface are flat surfaces, and the first connection surface is attached and connected to the second connection surface.

[0013] According to the liquid heater provided by the embodiment of the utility model, a wrapping part is provided on the outer peripheral wall of the heat conduction sleeve, a receiving groove is provided in the wrapping part, and the heating element is arranged in the receiving groove.

[0014] According to the liquid heater provided by an embodiment of the present invention, the water outlet pipe is a stainless steel pipe, and / or the heat conduction sleeve is a copper pipe or an aluminum pipe.

[0015] According to the liquid heater provided by an embodiment of the present invention, the thickness of the peripheral wall of the water outlet pipe is 0.3 mm - 1 mm.

[0016] According to the liquid heater provided by an embodiment of the present invention, it further includes a water delivery pipe. The water delivery pipe is communicated with the second heating assembly. One end of the water delivery pipe is communicated with the second heating assembly, and the other end is provided with a first branch pipe and a second branch pipe. A switching valve is provided on the first branch pipe, and the second branch pipe is communicated with the inner tank.

[0017] According to the liquid heater provided by an embodiment of the present invention, it further includes a support seat. The support seat is connected to one of the inner tank and the outer shell. The second heating assembly is connected to the support seat, and the second heating assembly is spaced apart from the inner tank through the support seat.

[0018] According to the liquid heater provided by an embodiment of the present invention, the second heating assembly is connected to the support seat through a bracket. There are multiple brackets, and the multiple brackets are spaced apart along the circumferential direction of the support seat. The second heating assembly is annular, and the inner tank is located inside the second heating assembly.

[0019] According to the liquid heater provided by an embodiment of the present invention, the heating element of the second heating assembly is annular. The diameter of the heating element is larger than the diameter of the bottom of the inner tank, and the heating element is sleeved on the bottom of the inner tank.

[0020] Additional aspects and advantages of the present invention will be given in part in the following description, become apparent in part from the following description, or be understood through the practice of the present invention. Description of the Drawings

[0021] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or related technologies, the following will briefly introduce the drawings required for use in the description of the embodiments or related technologies. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0022] Figure 1 is one of the structural schematic diagrams of the liquid heater provided by an embodiment of the present invention;

[0023] Figure 2 is the other structural schematic diagram of the liquid heater provided by an embodiment of the present invention;

[0024] Figure 3 It is a schematic structural diagram of a second heating component provided by an embodiment of the present utility model;

[0025] Figure 4 It is one of the cross-sectional views of the second heating component provided by an embodiment of the present utility model;

[0026] Figure 5 It is the second of the second heating components provided by an embodiment of the present utility model;

[0027] Figure 6 It is a schematic structural diagram of a support seat provided by an embodiment of the present utility model;

[0028] Figure 7 It is a schematic structural diagram of the support seat from another perspective provided by an embodiment of the present utility model.

[0029] Reference numerals:

[0030] 100, liquid heater; 101, outer shell; 102, water outlet part;

[0031] 110, inner tank; 111, first heating component;

[0032] 120, second heating component; 121, water outlet pipe; 122, heat conduction sleeve; 123, wrapping part; 124, heating element;

[0033] 131, water delivery pipe; 132, on-off valve; 133, water pump; 134, support seat; 135, bracket; 136, boss. Detailed implementation manners

[0034] The following further describes in detail the implementation manners of the present utility model in conjunction with the drawings and embodiments. The following embodiments are used to illustrate the present utility model, but cannot be used to limit the scope of the present utility model.

[0035] In the description of the embodiments of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the embodiments of the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation to the embodiments of the present utility model. In addition, the terms "first", "second", "third" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0036] In the description of the embodiments of the present utility model, it should be noted that, unless otherwise clearly specified and defined, the terms "connected" and "coupled" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms in the embodiments of the present utility model can be understood according to specific situations.

[0037] In the embodiments of the present utility model, unless otherwise clearly specified and defined, the first feature being "on" or "under" the second feature can be that the first and second features are in direct contact, or the first and second features are indirectly in contact through an intermediate medium. Moreover, the first feature being "above", "over" and "on top of" the second feature can be that the first feature is directly above or obliquely above the second feature, or merely indicates that the horizontal height of the first feature is higher than that of the second feature. The first feature being "under", "below" and "beneath" the second feature can be that the first feature is directly below or obliquely below the second feature, or merely indicates that the horizontal height of the first feature is less than that of the second feature.

[0038] In the description of this specification, the descriptions with reference to terms such as "one embodiment", "some embodiments", "example", "specific example", or "some examples" mean that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the embodiments of the present utility model. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in a suitable manner in any one or more embodiments or examples. In addition, without conflict, those skilled in the art can combine and combine the different embodiments or examples described in this specification and the features of different embodiments or examples.

[0039] The following Figures 1 to 7 describes the liquid heater of the present utility model.

[0040] Referring to Figure 1 and Figure 2 As shown, the liquid heater 100 according to the embodiments of the present utility model, the liquid heater 100 can be a water dispenser, an electric thermos, etc. The liquid heater 100 includes a housing 101, an inner tank 110, a first heating assembly 111, a second heating assembly 120, and a water pump 133.

[0041] Specifically, the inner tank 110 is disposed inside the housing 101. The inner tank 110 is adapted to store water. The first heating assembly 111 is attached to the inner tank 110 to heat the water in the inner tank 110 to boil the water in the inner tank 110. As Figure 1As shown, the first heating component 111 can be arranged on the outer side of the bottom wall of the inner tank 110. The second heating component 120 includes a water outlet pipe 121, and the water outlet pipe 121 is communicated with the inner tank 110 to heat the water during the water outlet process. A water outlet is provided on the bottom wall of the inner tank, and the water outlet is connected to the second heating component 120 through a water pump 133. During the process that the water in the inner tank 110 is output through the water outlet pipe 121, the second heating component 120 can heat the water to achieve instant heating. The inner tank 110 is arranged in the outer shell 101 and spaced apart from the outer shell, and the first heating component 111 or the second heating component 120 can be arranged between the inner tank 110 and the outer shell 101. The second heating component 120 and the first heating component 111 can work relatively independently. During use, it is not necessary to perform power distribution on the first heating component 111 and the second heating component 120, avoiding mutual limitation between the first heating component 111 and the second heating component 120, so as to ensure the heating power of the first heating component 111 and the second heating component 120. Thus, it is ensured that the first heating component 111 can heat the inner tank 110 to boil the water and remove chlorine, and the heating speed is increased.

[0042] In the related art, a liquid heater is only provided with a set of heating components, which takes into account heating the water in the inner tank and the water in the water outlet pipe. However, this requires power distribution of the heating power of the heating components, resulting in the limitation of the heating performance of the heating components, low heating efficiency and insufficient heating temperature. The liquid heater 100 of the present application heats the water in the inner tank 110 and the water during the water outlet process through the first heating component 111 and the second heating component 120 respectively. The first heating component 111 and the second heating component 120 can work relatively independently, avoiding mutual limitation between the two, ensuring the heating power, and the water in the inner tank 110 can be boiled through the first heating component 111. During use, the water in the inner tank 110 is boiled and dechlorinated through the first heating component 111, and the water is transported to the user end through the water outlet pipe 121 in the second heating component 120. The user end can be a water outlet switch or the like. When the water in the inner tank 110 is drinking water or already boiled water and the water temperature does not reach the user's requirement, when the water in the inner tank 110 passes through the water outlet pipe 121, the second heating component 120 heats the water in the water outlet pipe 121, so that it is not necessary to heat all the water in the inner tank 110, saving energy.

[0043] According to the liquid heater 100 of the embodiments of the present utility model, the first heating component 111 and the second heating component 120 are respectively used to heat the water in the inner tank 110 and the water during the water outlet process, and the first heating component 111 and the second heating component 120 can work relatively independently, avoiding mutual limitation between the two, ensuring the heating power, and the water in the inner tank 110 can be boiled by the first heating component 111. When instant heating is required, the output water is heated by the second heating component 120, without heating the entire water in the inner tank 110, improving the heating speed and saving energy.

[0044] See Figure 3 As Figure 4 shown, according to some embodiments of the present utility model, the second heating component 120 further includes a heat conduction sleeve 122 and a heating element 124. The heat conduction sleeve 122 is sleeved outside the water outlet pipe 121. The heat conduction sleeve 122 has a channel inside, and the shape and size of the cross-section of the channel match those of the water outlet pipe 121, so that the inner wall of the heat conduction sleeve 122 is in contact with the outer wall of the water outlet pipe 121 for heat transfer. The water outlet pipe 121 can be a round pipe, the cross-section of the channel is circular, and the diameter of the channel is slightly smaller than the diameter of the water outlet pipe 121, so that the heat conduction sleeve 122 fits with the water outlet pipe 121. The heating element 124 extends along the heat conduction sleeve 122 and is in contact with the heat conduction sleeve 122. As Figure 3 shown, the length of the heating element 124 can be greater than or equal to the length of the heat conduction sleeve 122, and the heating element 124 is in contact with the outer peripheral wall of the heat conduction sleeve 122, so that heat is transferred to the water outlet pipe 121 through the heat conduction sleeve 122. And the heat conduction sleeve 122 is sleeved outside the water outlet pipe 121, which can evenly transfer heat to the water outlet pipe 121 and improve the heating speed. In some embodiments, the water outlet pipe 121 can be a stainless steel pipe, and the heat conduction sleeve 122 can be a copper pipe to improve the heat transfer efficiency and the heating speed. The thickness of the peripheral wall of the water outlet pipe 121 is 0.3 mm - 1 mm. For example, the thickness of the peripheral wall of the water outlet pipe 121 can be 0.3 mm, 0.5 mm, 0.7 mm or 1 mm to improve the heat transfer speed.

[0045] See Figure 4 As Figure 5 shown, according to some embodiments of the present utility model, the outer peripheral wall of the heat conduction sleeve 122 has a first connection surface, and the outer peripheral wall of the heating element 124 has a second connection surface. Both the first connection surface and the second connection surface are flat surfaces. The first connection surface extends along the length direction of the heat conduction sleeve 122, and the second connection surface extends along the length direction of the heating element 124. The first connection surface is in contact connection with the second connection surface, and the heat conduction sleeve 122 and the heating element 124 can be bonded. This can increase the contact area between the heat conduction sleeve 122 and the heating element 124, improve the heat transfer speed, and reduce the heat loss of the heating element 124. As Figure 4As shown, the first connection surface makes the cross-section of the heat-conducting sleeve 122 have a straight edge, and the second connection surface makes the cross-section of the heating element 124 have a straight edge. In Figure 4 In the example of Figure 4 , the cross-section of the heat-conducting sleeve 122 is square, and the cross-section of the heating element 124 is trapezoidal. The bottom side of the trapezoid corresponds to the second connection surface. The volume and surface area of the side of the heating element 124 connected to the heat-conducting sleeve 122 are larger, and the volume and surface area of the opposite side are smaller. Thus, most of the heat of the heating element 124 is transferred to the heat-conducting sleeve 122, reducing heat loss.

[0046] As Figure 5 shown, according to some embodiments of the present invention, a wrapping portion 123 is provided on the outer peripheral wall of the heat-conducting sleeve 122. The wrapping portion 123 is provided with a receiving groove, and the heating element 124 is arranged in the receiving groove, thereby increasing the contact area between the heat-conducting sleeve 122 and the heating element 124 and improving the heat transfer efficiency between the two; moreover, the wrapping portion 123 wraps the heating element 124 from multiple directions, which can reduce the heat loss of the heating element 124.

[0047] Referring to Figure 1 and Figure 2 shown, according to some embodiments of the present invention, the liquid heater 100 further includes a water pump 133. A water outlet is provided on the bottom wall of the inner tank 110. The water outlet is connected to the second heating assembly 120 through the water pump 133. The water in the inner tank 110 is pumped into the water outlet pipe 121 through the water pump 133 and then conveyed to the water outlet. The first heating assembly 111 is connected to the bottom wall of the inner tank 110. The first heating assembly 111 can be annular to increase the contact area with the bottom wall, provide more heat, and improve the heating speed. The water outlet is located within the inner circle of the first heating assembly 111.

[0048] As Figure 2 shown, according to some embodiments of the present invention, the liquid heater 100 further includes a water delivery pipe 131. The water delivery pipe 131 is communicated with the second heating assembly 120. One end of the water delivery pipe 131 is communicated with the second heating assembly 120, and the other end is provided with a first branch pipe and a second branch pipe. A switching valve 132 is provided on the first branch pipe. The water in the inner tank 110 flows to the second branch pipe through the water outlet, the water pump 133, and the water outlet pipe 121, and is thus conveyed to the user's use end. The second branch pipe is communicated with the inner tank 110.

[0049] In some embodiments, the second branch pipe is located upstream of the first branch pipe, and the positions of both the first branch pipe and the second branch pipe are higher than the connection between the second heating assembly 120 and the inner tank 110. As Figure 2As shown, a water outlet is provided at the bottom of the inner tank 110. The water outlet pipe 121 is communicated with the water outlet through the water pump 133. The second branch pipe is connected to the side wall of the inner tank 110 and is communicated with the inside of the inner tank 110. Relative to the bottom of the inner tank 110, the connection position of the second branch pipe to the inner tank 110 is closer to the top of the inner tank 110. The on-off valve 132 is arranged downstream of the second branch pipe. During use, water is provided to the user by opening the on-off valve 132, and the on-off valve 132 is closed after the water supply is completed. The water vapor mixture generated by heating in the second heating assembly 120 can flow back into the inner tank 110 through the second branch pipe to achieve heat recovery. The water condensed from the steam can flow through the water delivery pipe 131 to the water outlet pipe 121, and then flow back into the inner tank 110 through the water outlet to achieve water recovery.

[0050] See Figure 1 As shown, according to some embodiments of the present invention, the liquid heater 100 further includes a support base 134. The support base 134 is connected to one of the inner tank 110 and the outer shell 101. The second heating assembly 120 is connected to the support base 134, and the second heating assembly 120 is spaced apart from the inner tank 110 through the support base 134.

[0051] In one embodiment, the support base 134 is connected to the inner bottom wall of the outer shell 101. The support base 134 and the inner bottom wall of the outer shell 101 can be connected through connecting columns, so that the support base 134 is spaced apart from the inner bottom wall of the outer shell 101. The water pump 133 can be accommodated between the support base 134 and the inner bottom wall of the outer shell 101. The bottom of the inner tank 110 is connected to the support base 134 to fix the inner tank 110. As Figure 1 And Figure 7 As shown, in some embodiments, a convex platform 136 is provided on one side of the support base 134. The bottom wall of the inner tank 110 is connected to the convex platform 136, so that the convex platform 136 is spaced apart from the bottom surface of the support base 134 to form a receiving space, and components such as a controller can be received in the receiving space.

[0052] As Figure 6 As shown, the second heating assembly 120 is connected to the support base 134 through a bracket 135, and the second heating assembly 120 is spaced apart from the support base 134. One end of the bracket 135 is connected to the support base 134, and the other end is connected to the second heating assembly 120. On the one hand, it fixes the heating assembly, and on the other hand, it spaces the heating assembly from the support base 134, avoiding heat loss caused by the heating element 124 contacting the support frame, and at the same time avoiding damage to the components on the support frame due to the temperature rise of the support frame contacting the heating element 124. As Figure 7As shown, in some embodiments, there are multiple brackets 135. The multiple brackets 135 are spaced apart along the circumferential direction of the support base 134 to improve the stability of the second heating assembly 120. The second heating assembly 120 is annular, and the diameter of the annular second heating assembly 120 is greater than the diameter of the bottom of the inner container 110. The inner container 110 is located within the inner circle of the second heating assembly 120, that is, the heating element 124 is sleeved on the inner container.

[0053] According to some embodiments of the present invention, the second heating assembly 120 further includes a steam generator and a steam pipe. The steam generator is used to generate steam, and the steam pipe connects the steam generator and the inner container 110 to deliver the steam into the inner container 110 to heat the target object. The liquid heater can be a steam rice cooker. There is a water storage area and a rice steaming area in the inner container 110. The water storage area is connected to the second heating assembly 120 to supply water, and the rice steaming area is used to hold the ingredients to be steamed and cooked. The steam pipe is connected to the rice steaming area. The first heating assembly 111 heats the water and ingredients in the inner container 110. The water in the inner container 110 is heated by the second heating assembly 120 to generate steam, and the steam is delivered to the steam area through the steam pipe to heat the ingredients, so that the interior of the ingredients is heated evenly and the steaming and cooking speed is increased.

[0054] Finally, it should be noted that the above embodiments are only used to illustrate the present invention, rather than to limit the present invention. Although the present invention has been described in detail with reference to the embodiments, those of ordinary skill in the art should understand that various combinations, modifications, or equivalent replacements of the technical solutions of the present invention do not depart from the spirit and scope of the technical solutions of the present invention, and should all be covered within the scope of the claims of the present invention.

Claims

1. A liquid heater, characterized in that, Comprising: A housing (101); An inner container (110), the inner container (110) is disposed within the housing (101), and the inner container (110) is adapted to store water; A first heating assembly (111), the first heating assembly (111) is attached to the inner container (110) to heat the water within the inner container (110); A second heating assembly (120), the second heating assembly (120) includes a water outlet pipe (121), the water outlet pipe (121) is in communication with the inner container (110) to heat the water flowing through the water outlet pipe (121), and the second heating assembly (120) and the first heating assembly (111) can operate relatively independently; A water pump (133), the bottom wall of the inner container (110) is provided with a water outlet, and the water outlet is connected to the second heating assembly (120) through the water pump (133).

2. The liquid heater according to claim 1, characterized in that The second heating assembly (120) further includes: A heat conducting sleeve (122), the heat conducting sleeve (122) is sleeved outside the water outlet pipe (121); A heating element (124), the heating element (124) extends along the heat conducting sleeve (122) and is attached to the heat conducting sleeve (122).

3. The liquid heater according to claim 2, characterized in that, The outer peripheral wall of the heat conducting sleeve (122) has a first connecting surface, and the outer peripheral wall of the heating element (124) has a second connecting surface. Both the first connecting surface and the second connecting surface are flat surfaces, and the first connecting surface is attached and connected to the second connecting surface.

4. The liquid heater according to claim 2, wherein, The outer peripheral wall of the heat conducting sleeve (122) is provided with a wrapping portion (123), the wrapping portion (123) is provided with a receiving groove, and the heating element (124) is disposed within the receiving groove.

5. The liquid heater according to claim 2, wherein The water outlet pipe (121) is a stainless steel pipe, and / or the heat conducting sleeve (122) is a copper pipe or an aluminum pipe.

6. The liquid heater according to claim 1, wherein The thickness of the peripheral wall of the water outlet pipe (121) is 0.3 mm - 1 mm.

7. The liquid heater according to claim 1, characterized in that, It further includes a water delivery pipe (131), the water delivery pipe (131) is in communication with the second heating assembly (120). One end of the water delivery pipe (131) is in communication with the second heating assembly (120), and the other end is provided with a first branch pipe and a second branch pipe. A switching valve (132) is provided on the first branch pipe, and the second branch pipe is in communication with the inner container (110).

8. The liquid heater according to claim 1, wherein, It further includes a support base (134), the support base (134) is connected to one of the inner container (110) and the housing (101), the second heating assembly (120) is connected to the support base (134), and the second heating assembly (120) is spaced apart from the inner container (110) through the support base (134).

9. The liquid heater according to claim 8, wherein The second heating assembly (120) is connected to the support base (134) through a bracket (135). There are multiple brackets (135), and the multiple brackets (135) are spaced apart along the circumferential direction of the support base (134). The second heating assembly (120) is annular, and the inner container (110) is located within the inner circle of the second heating assembly (120).

10. The liquid heater according to claim 1, wherein The heating element (124) of the second heating assembly (120) is annular, the diameter of the heating element (124) is larger than the diameter of the bottom of the inner container (110), and the heating element (124) is sleeved on the bottom of the inner container (110).

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